European Journal of Plant Pathology (1997) 103, 623-629

J. Aramburu, A. Laviña, E. Moriones, J. Riudavets and J. Arnó (1997)
The proportion of viruliferous individuals in field populations of Frankliniella occidentalis: Implications for Tomato spotted wilt virus epidemics in tomato
European Journal of Plant Pathology 103 (7), 623-629
Abstract: Tomato spotted wilt tospovirus (TSWV) infected plants and western flower thrips (Frankliniella occidentalis Perg., WFT) adult population densities were monitored during 1993 and 1994 in field tomatoes in Northeastern Spain. The proportion of viruliferous WFT adults in field populations was quantified. A significant association has been found between early population densities of WFT adult thrips and final TSWV incidence for early transplanted tomato crops. In contrast, for late transplanted tomato crops, whereas similar high final disease incidences of TSWV could be attained, very low WFT adult population densities were always detected. The significantly higher infectious potential of WFT populations collected during the early growth stages of late transplanted tomatoes could be relevant for the TSWV incidences attained in spite of the low thrips numbers detected.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Jordi Riudavets, Judit Arnó, Amparo Lavina

Research topic(s) for pests/diseases/weeds:
transmission/dispersal of plant diseases
population dynamics/ epidemiology

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Frankliniella occidentalis	Tomato (Solanum lycopersicum)	Spain (continental)
	Orthotospovirus tomatomaculae	Tomato (Solanum lycopersicum)	Spain (continental)